Improvement in tobacco-pipes



NITED STATES FFlClEJ PATENT ROBERT A. HOOE, OF TJVASHINGTON, DISTRICT'OF COLUMBIA.

IMPROVEMENT IN TOBACCO-PIPES.

To rf/M 11i/mnt t may concern,.-

Beit known that I, ROBERT A. HOGE, of the city of Vashington and District of Golumbia, have invented a new and useful Improvement in Tobacco-Smoking Pipes; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying` drawing, and to the letters of reference marked thereon.

Tobacco-smoking pipes as heretofore constructed have been made with a single bowl, or, if so divided as to separate the tobacco in a chamber distinct from asaliva-reservoir, the division has been not by separating the wall of the bowl, butby constructing a horizontal or oblique partition between the upper and lower sections of the bowl of the pipe with such partition perforated by a single hole, through which to draw the smoke of the burning tobacco. Such construction is disadvantageous for several reasons. First, the heat of the pipe when in use evaporates the saliva more or less, which accumulates at the base of the pipe, and as the vapor ascends through the single aperture it is there met by the nicotine expelled by the heat of the burning tobacco, and which accumulates freely if the tobacco is a little green or damp, and at the lower sidefof such orifice, as well as within it, forms a glutinous mixture or substance, which, when cold, often closes the aperture, thus rendering its removal necessary before the pipe can again be used; second, if the tobacco to be smoked has become dry and fine, a still greater tendency exists to obstruct a single aperture, as the fine portions are drawn with the smoke into it, and, there being met by the evaporation of the saliva from the bottom, are rendered moist and in just the condition to effectually close the aperture, third, in those pipes which are constructed with a horizontal partition midway of the walls of the bowl, (the portion above the partition not being removable,) when it becomes necessary while in the act of smoking to free the aperture from obstruction, the saliva-reservoir must be removed or turned down and the pipe inverted in order to effect such purpose. The consequence of this is that the tobacco is liable to drop out of the pipe, or

the saliva in a heated state and having an offensive odor gets upon the lingers of the operator, either of which results isdisagreeable and annoying. Again, if neither of these conditions happens, it is still difficult to thrust a straw or splinter through the aperture, owing to its location midway of the body of the pipe,

and, more than this, it is difficult to cleanse the aperture of the nicotine and saliva accumula` tion.

In that class of pipes where the partition extends from a point near the edge of the to bacco-chamber to near the base of 'the bowl, and having also a single perforation for the passage of the smoke, the same objections as above stated obtain, though perhaps to a less extent. To overcome these objections I divide theA body of my pipe into two sections,

the upper one, which contains the tobacco, be-

ing removable at pleasure from the lower one, which constitutes the saliva-reservoir, or -is connected therewith, and this while in the act of smoking, in case for any reason the circulation of the smoke should become impeded.

Instead of a single hole through a solid hori- `zontal partition between the tobacco-chamber and the bottom portion of the pipe, I construct the base ofthe tobacco-chamber of a thin metallic plate, either finely reticulated or perforated with a series of holes over its whole working-surface. lf, therefore, the holes become obstructed, the tobacco-chamber can be removed, and the end of a penknife-blade may be used to ream out, as it were, the openings, and that, too, without endangering the breaking of the pipe, as is often the case under like circumstances when the body of the pipe is made of brittle material, such as the claypipe. The metal plate in my pipe can also be readily cleaned with a brush, and the metal being incapable of being penetrated bythe nicotine and poisonous excretions ofthe tobacco, the blackened and disagreeable impregnation common to the base of a clay pipe after alittle use is obviated; and, lastly, in my pipe the perforated partition permits the evaporation of the saliva to rise practically at all points through the body of the pipe, and, thus diffused, become dispersed by the heat, instead of mingling in such quantity with the nicotine concentrated at a single aperture as to there form a glutinous substance to obstruct such passage as well asampregnate the clay or wood of which the pipe may be composed.

It will `be observed that my metallic division-plate rises a suitable distance on all sides within the tobacco-chamber, thus preventing the burning of the bowl, if made of wood, during the latter part of the consumption of a charge of tobacco, as well as the undue discoloration of the bowl at such point if made of clay, such burning and discoloration taking place most rapidly during the time when the pipe is subjected to the greatest heat, or during the latter part of the consumption of its charge of tobacco.

My pipe is partitioned into two main divisions, A and B, A being the upper portion of the pipe, which forms the tobacco-chamber, and B the lower portion or division, to which the stem is attached, and at the bottom of which I append a hinged cup, C, to receive the saliva which flows dowmthe stem into the lower main division, B, which forms asmokecirculating chamber. Division A, as may be seen in the drawings, is removable from dih vision B, a connection therewith being formed by a screw-thread cut on the periphery of the lower portion of the metallic portion a of the tobacco-chamber and the inner circumference of division B, as shown in Fig. l.

a is a metallic cup of zinc or other suitable metal, its base being plane-surfaced and either finely reticulated or perforated throughout its entire working surface, its upper portion being inserted into the lower end of division A a sufficient distance to secure it in place, and at the saine time to protect the lower portion of said main division A from the effect ofthe heat during the act of smoking.

Fig. 2 is a plan View of the metallic perforated cup which forms the base of main divis( .being constructed, arranged, and combined substantially in the manner and for the purpose described.

2. The main division A, in combination with the main division B, the two divisions being united in the manner and for the purpose described.

BOBT. A. HOOE.

' Witnesses:

FER. SCHNEIDER, THOMAS C. DoNN. 

